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Generative Adversarial Networks Projects

You're reading from   Generative Adversarial Networks Projects Build next-generation generative models using TensorFlow and Keras

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Product type Paperback
Published in Jan 2019
Publisher Packt
ISBN-13 9781789136678
Length 316 pages
Edition 1st Edition
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Author (1):
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Kailash Ahirwar Kailash Ahirwar
Author Profile Icon Kailash Ahirwar
Kailash Ahirwar
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Table of Contents (11) Chapters Close

Preface 1. Introduction to Generative Adversarial Networks FREE CHAPTER 2. 3D-GAN - Generating Shapes Using GANs 3. Face Aging Using Conditional GAN 4. Generating Anime Characters Using DCGANs 5. Using SRGANs to Generate Photo-Realistic Images 6. StackGAN - Text to Photo-Realistic Image Synthesis 7. CycleGAN - Turn Paintings into Photos 8. Conditional GAN - Image-to-Image Translation Using Conditional Adversarial Networks 9. Predicting the Future of GANs 10. Other Books You May Enjoy

Training the SRGAN

Training the SRGAN network is a two-step process. In the first step, we train the discriminator network. In the second step, we train the adversarial network, which eventually trains the generator network. Let's start training the network.

Perform the following steps to train the SRGAN network:

  1. Start by defining the hyperparameters required for the training:
# Define hyperparameters
data_dir = "Paht/to/the/dataset/img_align_celeba/*.*"
epochs = 20000
batch_size = 1

# Shape of low-resolution and high-resolution images
low_resolution_shape = (64, 64, 3)
high_resolution_shape = (256, 256, 3)
  1. Next, define the training optimizer. For all networks, we will use Adam optimizer with the learning rate equal to 0.0002 and beta_1 equal to 0.5:
# Common optimizer for all networks
common_optimizer = Adam(0.0002, 0.5)
...
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